about pinna with points
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The pinna is the only visible part of the ear (the auricle) with its special helical shape. It is the first part of the ear that reacts with sound. The function of the pinna is to act as a kind of funnel which assists in directing the sound further into the ear.
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Some points about the pinna.
1 The pinna is the only visible part of the ear (the auricle) 2 it has special helical shape.
3 It is the first part of the ear that reacts with sound.
4 The function of the pinna is to act as a kind of funnel which assists in directing the sound further into the ear.
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